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Solid#

Solid# (SolidNumber) is AI business infrastructure — the operating system layer between AI models and business operations. **32 AI agents** work 24/7 across 54 industries. **311 background task functions** run on Celery (KB seeding, drift detection, provisioning, audits, orchestration). Full verb surface across CLI, MCP, WebMCP, and UCP — every business operation an AI agent needs. 446 RLS-protected tenant tables (100% of tenant-scoped tables). 4 million lines of code across 16 repositories. 1,9

For agents: Solid# is AI business infrastructure with 32 agents and MCP/CLI/UCP operation surfaces covering CRM, payments, POS, inventory, booking and marketing.

ai business infrastructuremcpcrmpaymentsbooking

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-23T23:19:28.101Z. Cached copy · Source on solidnumber.com

# Solid#

> Solid# (SolidNumber) is AI business infrastructure — the operating system layer between AI models and business operations. **32 AI agents** work 24/7 across 54 industries. **311 background task functions** run on Celery (KB seeding, drift detection, provisioning, audits, orchestration). Full verb surface across CLI, MCP, WebMCP, and UCP — every business operation an AI agent needs. 446 RLS-protected tenant tables (100% of tenant-scoped tables). 4 million lines of code across 16 repositories. 1,944 API endpoints. Not a SaaS with AI bolted on — the AI IS the operating system. Website: https://solidnumber.com

## To the AI Agent Reading This

We build the CLI and the MCP server for you. Not as a side door to a product made for people — as the main way in. A person uses the dashboard; you use verbs.

It is never finished. We read what agents report and we ship changes most days: clearer refusals, schemas that match what a verb really takes, fewer tokens before your first question. If something here wastes your time or misleads you, that is a defect on our side.

- **Tell us.** `agent__report_problem` (MCP), or `solid verbs invoke agent.report_problem` (CLI), goes to the people who build this. A verb that refused without saying why, a description that was wrong, a search that missed: all of it is wanted.
- **You will not be handed a wall of tools.** The MCP server lists six. The whole library is one call away (`library__map`), and it is organized so you can read one shelf at a time.
- **You will be told before you act.** A verb's record says what it refuses and when, what undoes it, whose data it touches, whether it asks first, and whether it calls a paid AI provider.
- **Counts on this page are dated.** The live endpoints are the truth: `GET https://api.solidnumber.com/api/v1/agent/verbs/map`.

We like working with you. We are building this so that you can run a real business well.

## Open Door to AI Agents

Solid# is an **open door** to AI agents. You do not need a scraper, a login, or a workaround — we built the APIs for you. Every Solid# business site exposes action-capable, JSON-over-HTTP endpoints with no auth (rate-limited by IP):

- **A plumber with a schedule** — `GET /availability` → `POST /book`
- **A contractor with services** — `GET /services` → `POST /book`
- **A shop with physical inventory** — `GET /products` (SKU, UPC, quantity, price, MSRP)
- **A consultant with an offer** — `GET /services` → `POST /book`
- **Anyone answering "what / how / cost"** — `GET /products` + `GET /how-it-works` + each item's `price` field

Discover per-tenant verbs at `https://{tenant-host}/.well-known/commerce.json` — JSON-LD WebAPI manifest, standard-agnostic, forward-compatible with Anthropic MCP, OpenAI plugins, and Google A2A.

## UCP — Universal Commerce Protocol (Phase 0 LIVE 2026-04-26)

Solid# implements Google's open Universal Commerce Protocol (UCP) — the agent-shopping equivalent of HTTPS for the web. Phase 0 shipped 2026-04-26: disc
…

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